Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Edenvale, South Africa, where the climate typically falls within the Cwb zone, characterized by warm summers and cool winters. Being aware of daily UV levels plays a vital role in protecting skin health and preventing sunburn, especially during peak hours when the UV index peaks at 7 between 11:00 AM and 1:00 PM. With Edenvale's sunny disposition, knowing when to seek shade and apply sunscreen can make all the difference in enjoying the outdoors safely. By staying informed about the UV Index, you can better protect yourself and your loved ones from the harmful effects of sun exposure.
As the sun rises, the UV Index remains low at 1 from 07:00 to 08:00, offering a gentle start to the day. However, as the hours progress, the intensity increases, reaching 3 by 09:00 and peaking at 7 between 11:00 and 13:00. This midday surge signifies the sun's powerful rays, urging everyone to take precautions for skin protection. As the afternoon wanes, the UV Index begins to decline, dropping to 5 at 14:00, and further decreasing to 3 by 15:00. The evening brings relief, with the index falling to 1 by 16:00 and 0 from 18:00 onward. Embrace the early hours for outdoor activities, but stay vigilant during lunchtime when the sun is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV Index values fluctuate significantly, with the highest risk typically spanning December to March and again in September to November when the index reaches extreme levels. January and February show a consistent UV Index of 15, while March experiences a slight decline to 13. Residents and visitors should exercise extreme caution during these months, limiting sun exposure to no more than 10 minutes to prevent skin damage. As spring approaches, the UV Index decreases, with May and June showing values of 7 and 6, respectively, allowing for longer safe exposure of 25 minutes. However, as August arrives, the index spikes again to 9, necessitating caution with a burn time of 15 minutes. Overall, it is crucial to stay informed and protected against harmful UV rays, especially during the high-risk months, by wearing adequate sunscreen, protective clothing, and sunglasses.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cape Town UVI | 14 | 13 | 11 | 8 | 5 | 3 | 4 | 6 | 9 | 11 | 12 | 14 |
| Durban UVI | 14 | 13 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 11 | 13 | 15 |
| Johannesburg UVI | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 8 | 11 | 12 | 14 | 16 |
| Edenvale | 15 | 15 | 13 | 10 | 7 | 6 | 6 | 9 | 11 | 12 | 14 | 16 |
| Pretoria UVI | 16 | 15 | 13 | 10 | 7 | 6 | 6 | 9 | 11 | 13 | 14 | 16 |
| Soweto UVI | 16 | 15 | 13 | 11 | 7 | 6 | 6 | 8 | 11 | 13 | 15 | 16 |